contrib/smbfs/smbutil/lookup.c

   1 /*
   2  * Copyright (c) 2000, Boris Popov
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *    This product includes software developed by Boris Popov.
  16  * 4. Neither the name of the author nor the names of any co-contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  * $Id: lookup.c,v 1.3 2000/10/15 14:26:49 bp Exp $
  33  */
  34 #include <sys/param.h>
  35 #include <sys/errno.h>
  36 #include <sys/stat.h>
  37 #include <sys/socket.h>
  38 #include <err.h>
  39 #include <stdio.h>
  40 #include <unistd.h>
  41 #include <strings.h>
  42 #include <stdlib.h>
  43 #include <sysexits.h>
  44
  45 #include <netinet/in.h>
  46 #include <arpa/inet.h>
  47
  48 #include <cflib.h>
  49
  50 #include <netsmb/netbios.h>
  51 #include <netsmb/smb_lib.h>
  52 #include <netsmb/nb_lib.h>
  53 #include <netsmb/smb_conn.h>
  54
  55 #include "common.h"
  56
  57
  58 int
  59 cmd_lookup(int argc, char *argv[])
  60 {
  61         struct nb_ctx *ctx;
  62         struct sockaddr *sap;
  63         char *hostname;
  64         int error, opt;
  65
  66         if (argc < 2)
  67                 lookup_usage();
  68         error = nb_ctx_create(&ctx);
  69         if (error) {
  70                 smb_error("unable to create nbcontext", error);
  71                 exit(1);
  72         }
  73         if (smb_open_rcfile() == 0) {
  74                 if (nb_ctx_readrcsection(smb_rc, ctx, "default", 0) != 0)
  75                         exit(1);
  76                 rc_close(smb_rc);
  77         }
  78         while ((opt = getopt(argc, argv, "w:")) != EOF) {
  79                 switch(opt){
  80                     case 'w':
  81                         nb_ctx_setns(ctx, optarg);
  82                         break;
  83                     default:
  84                         lookup_usage();
  85                         /*NOTREACHED*/
  86                 }
  87         }
  88         if (optind >= argc)
  89                 lookup_usage();
  90         if (nb_ctx_resolve(ctx) != 0)
  91                 exit(1);
  92         hostname = argv[argc - 1];
  93 /*      printf("Looking for %s...\n", hostname);*/
  94         error = nbns_resolvename(hostname, ctx, &sap);
  95         if (error) {
  96                 smb_error("unable to resolve %s", error, hostname);
  97                 exit(1);
  98         }
  99         printf("Got response from %s\n", inet_ntoa(ctx->nb_lastns.sin_addr));
 100         printf("IP address of %s: %s\n", hostname, inet_ntoa(((struct sockaddr_in*)sap)->sin_addr));
 101         return 0;
 102 }
 103
 104
 105 void
 106 lookup_usage(void)
 107 {
 108         printf("usage: smbutil lookup [-w host] name\n");
 109         exit(1);
 110 }